If 
and 
are functions elements, then 
is a direct analytic continuation of 
if 
and 
and 
are equal on 
.
Direct Analytic Continuation
See also
Analytic Continuation, Global Analytic ContinuationExplore with Wolfram|Alpha
References
Krantz, S. G. "Direct Analytic Continuation." §10.1.4 in Handbook of Complex Variables. Boston, MA: Birkhäuser, p. 128, 1999.Referenced on Wolfram|Alpha
Direct Analytic ContinuationCite this as:
Weisstein, Eric W. "Direct Analytic Continuation." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/DirectAnalyticContinuation.html